Intranasal mass and suspicious CSF rhinorrhea
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There is a left nasal cavity mass with both CSF and herniated frontal lobe parenchyma within the mass with intracranial extension and bony defect of cribriform plate.
Nasoethmoidal encephalocele is a rare entity and should be differentiated from other nasal masses. CT well delineates the bony defect and MRI shows intracranial extension and contents.